7101220122001 has 4 divisors (see below), whose sum is σ = 7113969171252. Its totient is φ = 7088471072752.

The previous prime is 7101220121993. The next prime is 7101220122047. The reversal of 7101220122001 is 1002210221017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163005987600 + 6938214134401 = 403740^2 + 2634049^2 .

It is a cyclic number.

It is not a de Polignac number, because 7101220122001 - 2³ = 7101220121993 is a prime.

It is a super-2 number, since 2×7101220122001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7101220122001.

It is not an unprimeable number, because it can be changed into a prime (7101220122091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6374523790 + ... + 6374524903.

It is an arithmetic number, because the mean of its divisors is an integer number (1778492292813).

Almost surely, 2^{7101220122001} is an apocalyptic number.

It is an amenable number.

7101220122001 is a deficient number, since it is larger than the sum of its proper divisors (12749049251).

7101220122001 is a wasteful number, since it uses less digits than its factorization.

7101220122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12749049250.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 7101220122001 its reverse (1002210221017), we get a palindrome (8103430343018).

The spelling of 7101220122001 in words is "seven trillion, one hundred one billion, two hundred twenty million, one hundred twenty-two thousand, one".